Trolley hanger and clamp.



0. AALBORG. TROLLEY HANG ER AND CLAMP. APPLICATION FILED SEPT. 9,1901

Patented Aug. 17, 1909.

(,llllls'l A}; AAIIBORG, OF WILKINSBURG,

PENNSYLVANIA; ASSIGNOR TO WESTINGHOUSE TBOLLEY HANGER AND CLAMP.

Specification of Letters Patent.

Patented Aug. 17, 1909.

Application filed September 9, 1907. Serial No. 392,06.

To all whom may concern."

lle it known that I, UnmsTL-m AALBoRo, a citizen oi the lnitcd States, and a resident o t \Yilkinsburg. in the county of Allegheny and State ot Pennsylvania, have invented a new and useful Improvement-in Trolley Hangers and Clamps, of which the following is a specification.

My invention relates to means for supporting electric line conductors and it has for its object to provide an improved clampiug' device whereby a trolley conductor may be simply and durably secured to a suitable support.

lily improved clamping device is specially adapted for use with grooved trolley conductors that are suspended from messenger wires or cables but its use is not limited in this regard and it may be employed in connection with conductors of circular cross scction that are supported from bracket arms or cross wires, in accordaucc with a well known practice for low potential lines.

l igure 1, of the accompanying drawings, is a front elevation and Fig. 2 is an end elevation of a trolley hanger and clamp constructed in accordance with my invention. Figs. 3, l, 5, and 6 are detail views of the clamps shown in Figs. 1 and. 2.

Referring to the drawings, a trolley ductor 1 is suspended from a messenger wire or cable 2 by means of a hanger rod 3, a cable clamp l and a trdll'ey clamp The cable clamp l and the trolley clamp 5 are substantially alike except that the trolley clamp is provided with book projections that are adapted to engage the grooves 6 in the trolley conductor 1' while the cable clamp l is provided with recesses which are adapted to receive the cable 2,-gonsequcntly, only one of these parts will be described in detail. "he cable clamp el com'prises two interchangeable halves 7 having complementary recesses S and 9 in which the cable 2 may be secured, the hanger rod 3 being attached tothe. :ableclamp t at one end and to the trolley clamp 5 at the other. The trolley clamp 5 comprises two interchangeable clamping portions 10 and 11 having hollow body members 12 into which segmental ring projections 13 extend, lateral projections 14 of hook-shape in cross section so that they are adapted to engage grooves 6 in the trolley conductor 1 and set nuts 15 and 16 which produce the desired clamping action between the two parts and serve to secure the clamp to the hanger rod. .The upper extremities of the body portions 12 form anopening 17 through which the hanger rod 3 projects and the projections 13 are so arranged as to form at complementary sleeve. segments to receive the rod without interfering with each other. Below the sleeve thus formed, the rod is provided with the set nut 15 and outside the body 12 oi the clamp it is provided with the a: set nut 16. The surfaces of the clamping members which are engaged by the set nuts 0 a re so beveled that a clamping action is pro duced between the projections ll when the set nuts are forced toward each other.

It will be observed that the total length otthe hanger may be adjusted to some extent since the rod 3 is threaded for a material distance "from each end and, in practice, this feature is convenient and desirable. 7 l urthcrnmre, the trolley who may be discina gcd trom its clamp without disturbing thc connection between the hanger and the messenger cable.

Mince variations in the size and arrangement of parts may be cltected within the scope of my invention, I desire that only such limitations shall be imposed as are indicated in the appended claims.

I claim as my invention:

1. A hanger for wlrcs or cables comprising a rod. two interchangeable complementary jaw members having'hollow body portions and segmental sleeve projections each of which extends into the hollow, body por tion of the other member, thereby forming a. sleeve through which the rod projects, and set nuts mounted on the rod at the respective ends of the sleeve.

A hanger tor wires or cables comprising a rod, two interchangeable complementary jaw members having laterally extending hook projections adapted to engage a grooved conductor and hollow body portions, segmental sleeve projections each of which extends into the hollow body portion of the other member. thereby forming a sleeve through which the'rod project-s, nd set nuts mounted on i the rod atthe respective ends of the sleeve, the end surfaces of the sleeve being so beveled that a clamping ac tion is produced between the jaw members when the set nuts are forced toward each other;

3.' A hanger comprising a rod, two complementary members having hollow body portions and jaws and provided with segmental sleeve projections which extend into the opposing hollow body portions and constitute a sleeve to embrace the rod, and means cooperating with the rod to force the jaws toward each other. 4. A hanger comprising a rod, two c'om plementary members having hollow body portions-and jaws and "provided with segmental sleeve projections to embrace the rod, and means cooperating with the rod to force the jaws toward each other.

5. A hanger comprising a rod, two complementary members having hollow body ortions provided with jaws and inwardly I inclined surfaces at their respective ends and intermediate segmental sleeve projec tions which embrace said rod, and an adjustable nut to engage said inclined surface and force the jaws toward each other.

6. A hanger comprising a rod having a nut at one end, two complementary mem- .bers having hollow body portions to embrace said nut and provided with jaws and seg:

mental sleeve projections between which said nut is located, and a nut adjustably mounted on said rod to engage said body portions and force said jaws toward each other.

7 A hanger comprising a rod having screw-threaded ends, two nuts mounted upon each end, two pairs of complementary members having hollow body portions provided with jaws, inwardly inclined ends and seg mental sleeve projections, said sleeve projections being so disposed as to embrace the rod between its nuts. T

8. A hanger comprising a rod having a screw-threaded end, two nuts mounted upon said end, two complementary members having hollow body portions provided with jaws and inwardly inclined surfaces at their respective ends and with intermediate segmental sleeve projections to embrace the rod between the nuts.

9. A hanger comprisinga rod having nuts upon its ends, two complementary members at each end having hollow body port-ions provided with jaws and segmental sleeve projections, and means cooperating with the rod to force each pair of jaws toward each other. a

In testimony whereof, I have hereunto subscribed my name this 29 day of August,

1907. CHRISTIAN AALBORG.

Witnesses FRANK CoNR'An, BIRNEY Hmns. 

